Strainer



Jan. 3, 1928. 1,654,615 L E. SMITH STRAINER Fil ed Oct. 20. 1926 INVENTOR.

Ira E. Sm iih u) a tendency to settle.

I 15 a plug in the Patented 3', 1928. I

UNITED STAT s PATENT OFFICE.

IRA E. SMITH, STOGKTON, CALIFORNIA.

s'rnaman.

This invention relates to improvements in strainers for gasoline, fuel ml and other liquids such as areinterposed 1n the feed lines of such liquids. i

The principal object of my invention provide a device of this character which will efficiently strain all foreign matter and sedi ment from the liquid no matter how finely divided such matter may be as long as it has A further object is to construct the device in such a manner that all sediment caught by the strainer can be readily removed and" cleaned out without necessitating the use oi I bottom of the mainbody oi the strainer; without having to disconnect such body from the pipe l ne; and without having to drain out a certain amount 01 the liquid from the line. This feature not only such operations may be thoroughly done, but

. prevents the waste of any appreciable amount of the liquid.

A further object of the invention is to produce a simple and inexpensive device and yet one which will be exceed nglyefltective 'for the purpose for which it is designed.

These objects I- accomplish by "means of such structure. and relative arrangement of parts as will fully appear by a perusal of the 1 following specification and claims.

The figure on the drawing is a sectional elevation of my improved strainer.

Referring now more particularly to the characters of reference on the drawing, the body of the strainer arranged to be permanently interposed in a pipe line comprises a bowl 1 having a removable mp2 and opposed intake and outlet openings 3 and 4 respectively adjacent-its upper end adapted for connection to corresponding pipes. A transverse wall 5 extending from the bottom of the intake to the. top of the outlet and having a central orifice 6 concentric with the bowl divides the latter into upper and lower chambers 7 and 8 respectively.

Removably depending into the bowl chamher 8 through the opening 6 is a cylindrical catch pot 9 which terminates a short distance from the bottom of the bowl. This pot has an outwardly projecting rim flange l0 resting on the wall 5 about the opening 6. Just under the wall 5 the pot has a row of enables the cleaning operations to be can openings 11 thereabove. The flan e 10 has opposed cars 12 projecting upwar y there from, u n which ears are swung the ends of a foldable bail 13: The cap 2 of the body is of such size that when removed the pot may be drawn upwardly through the cap opening; I

Depending into the pot in concentric and spaced relation thereto is a solid cylindrical skirt 14 "which is open on the bottom and terminates some distance above the bottom of the pot. This skirt is removably fitted into the pot by means of a supporting and locating rim flange 15 which rests on the flange 10. Depending into the pot inwardly of the skirt and in spacedand concentric relation thereto is a cylindrical screen 16 of suitable fine mesh. This screen is open at its upper end and at such end is secured to a ring 17 having an outwardly projecting flange 18 which removably seats on the flange 15 in a manner to locate and centralize the screen'relative to the skirt. The screen is 7 closed at its bottom end by means of a cup 19 to which the screen is secured, the cup and ring being connected by rigid strips 20 so as to form a rigid unit without necessitating the use of heavy screening.

Fixed in the bottom of the pot centrally thereof and projecting upwardly into the screen unit-through ahole in the cup -19 is a pipe 21 which is open to the interior of make a liquid tight fit with each other, and

the'latter with the wall 5; and the pipe 21 has a similar fit with the opening in the cup 19. I

t will therefore be seen that any liquid entering the chamber through the intake 3 must pass into and through the screen unit before enterin the pot, and must pass below the skirt 14 efore it can reach the level of the openings 11. and pass thence into the 22 in the form of a plug which debowl chamber 18 and the outlet 4. Any relatively large particles of foreign matter in the liquid are caught directly by the screen.

Any. fine sediment passing through the.

screen, instead of passing directly to the outlet with the normal flow of liquid from the intake to the outlet as is usually the case tion of foreign matter in the screen beforereaching the top of the pipe. The function of the pipe is to prevent the spilling of any appreciable amount of liquid from the pot when the latter is removed from the bowl,

and prevents any spilling of the liquid over the top of the bowl when the pot is reinserted in the bowl; When thecap 2 is removed the bowl is full of liquidand the arts therein are completely submerged. W en the bail 13 is lifted the pot and all parts nested therem are removable as a unit, as will be evident.

Owing to the pipe'21 terminating-lower than -the side openings 11, the liquid will flow'throughthe pipe and out of the pot as the latteris raised until the level of the liquid in the pot is adjacent the top of the pipe, and consequently, below that of the openings 11.

The removed structure can therefore be taken to any desired place for cleaning with out the. possibility of the liquid spilling out through the openings 11; the liquid possibly flowing out through said pipe being a negligible amount. The pipe 21 having an interior screen plug instead of an overhanging cap, the cup 19 of the screen unit may be withdrawn from the pipe without first having to remove the pipe covering and without having to make the opening in said cup larger than the diameter of the pipe. Theskirt may also be easily removed from the pot so that the different parts of the strainer structure may be .disassociated from each other and thoroughly cleaned out individall i vhcn the pot is replaced in the bowl, the

latter being still full of liquid, said liquid can start to flow into the pot'through the pipe 21 as soon as the bottom of the pot I engages the liquid. This enablesthe liquid displaced by the relatively great bulk of the pot to be taken care of as t e latter is graduall immersed in the liquid, and avoids the ilfing over of the liquid from the top of the bowl which would otherwise be had.

A plu in the bottom of the bowl such as is usualfy used is unnecessary with this structure, since no sediment is ever caught therein. This enables the bowl to be set as close to the floor or the like as may be necessary, since there is no need of ever. getting under the bowl.

The capacityiflofthe screen member, and the volumetridfarea of the surrounding parts, are of course sufiiciently large so as not to restrict the flow of oil from the device, or interfere with the proper operacure by Letters Patent is:

"l. A strainer comprising a bowl having its upper end, a transverse wall tion of the suction pump connected to the outlet pipe.

From the foregoing description it can be not formnadeparture' from the spirit of the invention, as defined by'the appen ed claims.

Having thus described my inve tion what I claim as new and useful and desire to 'sespaced intake and outlet openings adjacent in the bowl having'an opening intermediate its ends extending from below the intake to above the outlet, a screen member closed on'its bottom depending into the howl'from the wallfrom such detail may be resorted to as do opening, a solid skirt surrounding the screen only on the bottom, and closure means be tween the top of the skirt and the wall and member in spaced relation thereto and open 1 between the top of the screen member and the skirt. V

2. A strainer comprising a bowl having spaced intake and outlet openings adjacent I its upper end, a transverse wall in the bowl having anopening intermediate its ends extending from below the intake to above the outlet, a screen member depending into the bowl from the wall-opening, a pot surrounding the screen member, andremov ably mounted in the, bowl in connection therewith for removal from the bowl in an upward direction, and means provided in connection with the pot for permitting the entrance of liquid into the pot from the bottom thereof when said pot is lowered into the bowl but preventing the escape of for-' 3 eign matter from the pot until such matter has reached a predetermined depth.

3. A strainer comprising a bowl having spaced intake and outlet openings adjacent its upper end, a transverse wall in the bowl having an opening intermediate its ends extending from below the intake to above the outlet, a screen member depending into the bowl from the wall-opening, a pot surrounding the screen member, and removably mounted in the bowl in connection therewith for removal from the bowl in an upward direction,'and a pipe projecting upwardly from the bottom of the pot.

LA strainer comprising a bowl having spacedintake and-outlet openings adjacent its upper end, a transverse wall in the bowl e the screen memben and lr'emovably mounted spaced intake and outlet openingsadjacent- 'its' upper end, a transverse wall'in having an opening intermediate its ends exthe intake to above the in the bowl in connection therewith for re.- moval from the bowl bottom 0 5. A strainer comprising a' bowl having the bowl tending-from below outlet, a screen member depending .intothe a bowl fromthe wall-opening, a pot surround.-

Ith-

flowing' in a horizontal ing the. screen member and having a liquidtight fit with the .wall, closure means between the top of the screen member and the pot, the latter having an opening in its side adjacent its upper end but below the wall, and means arranged in connection with the screen and pot preventin' the liquid from motion, from the screen to the pot opening.

6. A strainer comprising a bowl having spaced intake and outlet openings adjacent its upper end,a transverse wall in the bowl in an upward direction, and a vpi e projecting upwardly fromtne the pot,- and terminating below" the side opening in the pot the outlet and-having an opening screen for forcing all liquid entering the I screen from the outlet to flow to-adjacent the bottom of the screen before such liquid can pass, to the outlet.

7. A strainer comprising a bowl having spaced intake and outlet openings adjacent its up er end, a-transverse wall m'the bowl exten mg from "below the intake to above intermediate itsiends, ascreen member'depending'io into-the bowl through said openin a soli skirt depending into the bowl a screen, and closure means between the wall 'andthe screen and skirt at. the top thereof.

8,. A strainer comprising a bowl having spaced intake and outlet openings adjacent.

its upper end, a transverse wall in the bowl tending from below outlet, a screen member closed on its bottom depending 1nto the bowl Irom the wall opening, a pot surrounding the screen mernber liquid tight fit with the wall,

and having a a solid skirt between the screen member and the pot and depending from the top of the screen to a point short of the bottom of the pot," and closure means between the upper ends of the pot, skirt'and screen member.

In testimony whereof I afiix my si nature. IRA E. S TH.

ut the v having an opening intermediate its ends exthe intake to above the 

